import { asyncRouterMap, constantRouterMap } from '@/router'
/**
 * 通过meta.role判断是否与当前用户权限匹配
 * @param roles
 * @param route
 */
function hasPermission(roles, route) {
  if (route.meta && route.meta.roles) {
    return roles.some(role => route.meta.roles.indexOf(role) >= 0)
  } else {
    return true
  }
}
/**
 * 递归过滤异步路由表，返回符合用户角色权限的路由表
 * @param asyncRouterMap
 * @param roles
 */
function filterAsyncRouter(asyncRouterMap, roles) {
  const accessedRouters = asyncRouterMap.filter(route => {
    if (hasPermission(roles, route)) {
      if (route.children && route.children.length) {
        route.children = filterAsyncRouter(route.children, roles)
      }
      return true
    }
    return false
  })
  return accessedRouters
}

const permission = {
  state: {
    routers: constantRouterMap,
    addRouters: []
  },
  mutations: {
    SET_ROUTERS: (state, routers) => {
        let t = []
        for (let i in constantRouterMap){
          if (routers!=undefined&&routers[i]!=undefined){
                for (let j in routers) {
                    if (constantRouterMap[i]['meta']!=undefined){
                        if (constantRouterMap[i]['meta']['title'] == Object.keys(routers[j])[0]){
                            constantRouterMap[i]['show'] = true;
                            t[i] = constantRouterMap[i];
                            break;
                        }
                    }
                }
                if (constantRouterMap[i]['children']!=undefined){
                    var temp = []
                    for (let j in constantRouterMap[i]['children']) {
                        if (constantRouterMap[i]['children'][j]['meta']!=undefined){
                            if (routers.length>0){
                                let length = routers.filter((item)=>{
                                    return Object.keys(item)[0] == constantRouterMap[i]['children'][j]['meta']['title']
                                }).length;
                                if (length>0){
                                    temp[j] = constantRouterMap[i]['children'][j]
                                }
                            }
                        }
                    }
                    if (t[i]!=undefined){
                        t[i]['children'] = Object.values(temp)
                    }
                }
            }
        }
      state.routers = t
      state.addRouters = []
      consoleLog('state.routers', state.routers)
    }
  },
  actions: {
    GenerateRoutes({ commit }, data) {
      return new Promise(resolve => {
        const { roles } = data
        let accessedRouters = roles//新增有访问权限的路由
        consoleLog('accessedRouters', accessedRouters)
        commit('SET_ROUTERS', accessedRouters)
        resolve()
      })
    }
  }
}

export default permission
